Lens for projection television

Details Lens for projection television Lens for projection television

1995-05-12

1997-04-29

Epps, Georgia Y.

Optical: systems and elements

Lens

Fluid

G02B 106

Patent

active

056254962

ABSTRACT:
A projection lens for a projection television is made to match different inch sizes of the screen. The kind of coolant material constituting a liquid lens which is attached to the front surface of a projection tube is changed or the coolant is constructed by a plurality of kinds of liquid materials and a mixing ratio of the coolant materials is changed, thereby matching to the inch size of each screen is made.

REFERENCES:
patent: 4725755 (1988-02-01), Hasegawa
patent: 4780640 (1988-10-01), Hasegawa
patent: 4838665 (1989-06-01), Hasegawa et al.

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